Fitbit adds heart rate monitoring to its Alta line and improves sleep tracking

 Fitbit’s big smartwatch announcement is, it seems, still a ways off. But the company’s got a pair of announcements this week, including an update to its popular Alta tracker and changes to the way it gathers sleep tracking. The Alta HR is an update to last year’s Alta, a well designed piece of hardware that has since grown into the second-best fitness tracker (behind… Read More